Across 3 review studies, all reported beneficial effects of Lactobacillus rhamnosus on gut health, with moderate effect sizes in two studies and a small effect in one. Evidence is derived from animal and aquaculture populations, with no human-specific data. Doses, forms, and study durations were not reported, limiting applicability to human supplementation.
Caveats: Evidence base is small (only 3 studies) — conclusions should be considered preliminary. Available evidence is overwhelmingly positive — clinical literature in this area is subject to publication bias (null-result studies are less likely to be published or indexed). All studies are reviews with no individual human trials, and none reported statistical significance or study durations. Effects in animal and aquaculture populations may not translate to humans.
They increase beneficial gut bacteria and improve the digestion and integrity of the intestine.
Their application in functional foods contributes to improved gut health and reduced risk of foodborne illnesses.
Several studies have shown that the addition of algae, along with probiotics, can influence the microbiota, and improve gut health and overall yield in fish, shrimp, and mussels aquaculture.